Understanding Inhaled Allergens: Causes & Symptoms

Allergens

Allergens are substances that can cause an allergic reaction. When you inhale an allergen, your body's immune system overreacts and releases histamine and other chemicals, which cause allergy symptoms such as sneezing, a runny nose, itchy eyes, and difficulty breathing.

Some common allergens that can be inhaled include:

* Pollen from trees, grasses, and weeds

* Dust mites

* Pet dander

* Mold spores

* Cockroaches

* Certain foods, such as peanuts, tree nuts, milk, and eggs

If you have allergies, it's important to avoid exposure to your triggers as much as possible. You can also take medication to help manage your symptoms.